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  2. Linnett double-quartet theory - Wikipedia

    en.wikipedia.org/wiki/Linnett_Double-Quartet_Theory

    Left: The dot-and-cross diagram of the LDQ structure of ozone (O 3). The nuclei are as indicated and the electrons are denoted by either dots or crosses, depending on their relative spins. Right: Simplified diagram of the LDQ structure of O 3, showing electrons in non-coincident pairs using thin lines and a coincident electron pair using a ...

  3. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    [1] [2] [3] Introduced by Gilbert N. Lewis in his 1916 article The Atom and the Molecule, a Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. [4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.

  4. File:CaO-Al2O3-SiO2-phase-diagram-greek.svg - Wikipedia

    en.wikipedia.org/wiki/File:CaO-Al2O3-SiO2-phase...

    Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.

  5. Metal L-edge - Wikipedia

    en.wikipedia.org/wiki/Metal_L-edge

    Figure 1: L 3 - and L 2-edges of [CuCl 4] 2−. Metal L-edge spectroscopy is a spectroscopic technique used to study the electronic structures of transition metal atoms and complexes . This method measures X-ray absorption caused by the excitation of a metal 2p electron to unfilled d orbitals (e.g. 3d for first-row transition metals), which ...

  6. Aluminium oxide - Wikipedia

    en.wikipedia.org/wiki/Aluminium_oxide

    2 Al(CH 3) 3 + 3 H 2 O → Al 2 O 3 + 6 CH 4. H 2 O in the above reaction can be replaced by ozone (O 3) as the active oxidant and the following reaction then takes place: [44] [45] 2 Al(CH 3) 3 + O 3Al 2 O 3 + 3 C 2 H 6. The Al 2 O 3 films prepared using O 3 show 10–100 times lower leakage current density compared with those prepared by ...

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  8. Lewis acids and bases - Wikipedia

    en.wikipedia.org/wiki/Lewis_acids_and_bases

    BF 3 + OMe 2 → BF 3 OMe 2. Both BF 4 − and BF 3 OMe 2 are Lewis base adducts of boron trifluoride. Many adducts violate the octet rule, such as the triiodide anion: I 2 + I − → I − 3. The variability of the colors of iodine solutions reflects the variable abilities of the solvent to form adducts with the Lewis acid I 2.

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